I think that "Evening Sun" is a metaphor for an affair (not necessarily a true story, but a story nonetheless). An 'evening sun' is essentially a paradox, because if you think about it, there is not really any sun in the evening apart from a sunset. In that way, I think that Julian is talking about some sort of romantic relationship that is coming to a close (perhaps a summer fling) and using the metaphor of a sunset to show how it's ending. The first stanza seems to suggest that the romance is between two teenagers, the boy talking about the girl having issues at school or with her friends, and he seems to offer her a kind of peace and kindness. When he says "go your separate way now, someday you'll come back and I'll be dreaming I was sunburned," it's pretty obvious that the 'sunburn' is extending on his metaphor, 'sunburned' meaning in the middle of the day, or in the middle of the romance/summer fling, what have you. The fact that he says "singers, they will sometimes lie," is perhaps alluding to himself (obviously, he is a singer) which could lead to a possibility that the romance was an affair of some sort.
I think that "Evening Sun" is a metaphor for an affair (not necessarily a true story, but a story nonetheless). An 'evening sun' is essentially a paradox, because if you think about it, there is not really any sun in the evening apart from a sunset. In that way, I think that Julian is talking about some sort of romantic relationship that is coming to a close (perhaps a summer fling) and using the metaphor of a sunset to show how it's ending. The first stanza seems to suggest that the romance is between two teenagers, the boy talking about the girl having issues at school or with her friends, and he seems to offer her a kind of peace and kindness. When he says "go your separate way now, someday you'll come back and I'll be dreaming I was sunburned," it's pretty obvious that the 'sunburn' is extending on his metaphor, 'sunburned' meaning in the middle of the day, or in the middle of the romance/summer fling, what have you. The fact that he says "singers, they will sometimes lie," is perhaps alluding to himself (obviously, he is a singer) which could lead to a possibility that the romance was an affair of some sort.